Cinder sifter



(No Model.)

J. A. DONOVAN.

` GINDBB. SIPT'ER.

Patented Sept. 26, 1882.

w m m m m 'UNITED` 4STATES PATENT OEEICE.

JOSEPH A. DONOVAN, OE'TOEONTO, ONTARIO, CANADA.

oiNDi-:R-SIFTER.

SPECIFICATION forming part ofl Letters Patent No. 265,038, dated September 26, 1882.

Application filed March 27.1882. (No model.)

' ble expenditure of labor; and it consists in the peculiar construction,l arrangement, and combination of parts, as morefully hereinafter described'and claimed.

Figure lis a perspective view of my improved cinder-sifter, showing the cover of theV box removed and the drawers partially opened. Fig. 2 is a sectional elevation of my improved cindensifter, and Fig.'3 is a detail showing the arrangement of the detachable cover of the cylinder. In the drawings l have shown my improve cinder-sifter built of Wood and wire-gauze; but

it will of course be understood that sheet-iron or other material might be advantageously employed in the construction without in any way altering the principle involved in the invention. 1 mayfurther men tion that although I have shown in the drawings a-rectangular box arranged to contain the cylinder a differently-shaped box might be used for the purpose of containing my cylindrical sifter.

In the drawings like letters indicate corresponding parts in each ligure.

A is a rectangular box, provided with wheels B. p

(l is the cylinder, the body of which is preferably made of wire-gauze, While its ends a are solid disks of wood, iron, or other suitable material. In the center of the cylinder (l, I pro vide at one end a pivoted pin, b, journaled in one side of the box A. The end of the crankhandle D forms a center bearing at the opposite end of the cylinder. The cylinder O is thus pivoted within the boxfA and provided with a crank-handle, D, in order that it may be caused to revolve within the said box.

E is a cover formed tofittightly the top of the box A, the flange extending around the cover, constituting a joint capable of preventing the escape of any dust produced by the movement of my sifting-cylinder.

F is an ash-drawer placed immediately below the sifting-cylinder C, and extending across the full width and lengthof the box A. Gr is a similarly-formed drawer, situated below the ash-drawer F, and designed specially to receive the cinders, as herein explained, after the ashes have been separated therefrom and removed within the drawer F.

In order to protect thebearingedges of the drawers F and G, I place over each edge a beveled strip, d. (SeeFig. 22.) This strip effect-4 ually prevents the admission of any ash-dust or other obstruction accumulating on the edges ofthe drawers, which might affect their satisfactory movement. These beveled strips extend some distance over the edge of the drawers to more effectually serve the desired purpose, and in orderthat when the upper drawer is removed cinders will be prevented from collecting on the lower strips, which serve as the supports for the upper drawer. V

It will of course be understoodfrom theforegoing that the ashes to be sifted are placed within the cylinder C and the cylinder caused to revolve. In order that the cinders may be placed within the cylinder, a segment of it is made detachable, as shown in Fig. 3. This segment, which constitutes the cover, consists of a rectangular circular frame, composed of two straight parallel bars, c, connected together by curved end pieces, f, the ends of the bars e projecting beyond the end bars, f. The frame thus formed is covered with gauze, corresponding with the rest of the cylinder, and

is fitted into a space formed in the cylinder, so that the cover shall correspond with the circle of the cylinder. In order to secure this cover :in position, I provide on one end piece, a, two eyebolts, g. Corresponding with these eyeholts, on the opposite end of the cylinder, I provide pivoted crooked fingers h, the eyebolts g being arranged to receive the ends of the bar e at one end of the cover, While .thempivoted' curved ngers 7L are designed to clamp over the opposite ends of the parallel bars c. It will thus be seen thata cover so constructed can easily be removed and replaced. When the cinders are to be sifted the cover E is first removed, and then the segment of the cylinder forming its cover, as described. The cinders may then be freely dumped into the cylinder till itis full, or partially so, when the coverof the cylinder isreplaced and fastened in position, as indicated. The coverEis then placed on the box A, when, by a few rapid turns at the crank-handle D, the ashes are discharged through the meshes of the wire cylinder into the ash-drawer F. The agitation of the cinattained by the arrangement of the two draw' ers F and Gr, F being arranged for the purpose of receiving the ashes and dust shaken from the cinders, which, when so separated, can be removed in the drawer and readily conveyed to a receptacle arranged for their collection, while the drawer Greceives only cinders after they have been thoroughly cleansed.

Apart from the advantage ofthe complete separation of the cinders and ashes, as described, the facility and rapidity with which both the dust and the cinders may be handled constitutes an importantfactorin the efficiency of my cinder-sifter. Another element of advantagein my peculiarly-constructed sifter is the simple means for securing in position the segment of the cylinder designed to be removed for the purpose of forming a door or opening into the cylinder. The bar e at one end of the frame forming the segment referred to can easily be slipped into the eyebolts g, while the other end of the bars can with equal rapidityr be locked by turning the ngers h, and of course the segment can be removed with equal rapidity. Another advantage I may mention is providing the wheels B, which makes the cinder-sifter extrem el y easy to move from place to placean important matter when the sii'ter is made large.

What I claim as my invention isl. A cinder-sifter comprising a perforated or wire-gauze cylinder provided with a detachable cover, a closed'box carried on wheels, and the two drawers F and G, placed within the boX, one below the other, and having theirbearingedges protected by the beveled strips d, substantially as and for the purpose specified.

2. In an ash-sitter, the screening-cylinder having fixed eyes g upon one end and pivoted locking-keys h upon the other, combined with the door-frame, formed of the curved end bars, f, and the side bars, e, projecting beyond the barsf upon either side, as and for the purpose set forth.

JOSEPH A. DONOVAN.

Witnesses C. BALDWIN, F. BARNARD FETHERsToNBAUGH. 

